Wow. You are the first Toe'er I've seen on this forum to say that we are dealing here with history. Historical sciences as opposed to something else. Progress.
As you said it must employ other means of testing to confirm the theories involved.
And this is important. Those means must be substantive enough to justify a claim that testing has taken place to justify a theory being held.
Of coarse we would say Toe doesn't fit the bill.
Now you put forth the idea of what should be found in what layer as a test of Toe. I would say this would not test Toe but only a a prediction of Toe. a minor one. One that only barely touches on the subject of biology. In short its a fallacy to think fossils in sequence can be a test of a great theory of biology.
All other kinds of explanations can account for fossil sequence. And it is all specualtion by its very nature. Also of coarse the geology is itself speculation. Premise onpremise.
The test you suggest does not qualify to say Toe has been tested. even if the test worked and indeed was right.
Rob